Detachable window



March 13, 1934. F. PAULSEN 1,950,949

DETACHABLE WINDOW Filed Sept. 26, 1930 2 Sheets-Sheet l March 13, 1934. F PA L EN 1.950,949

DETACHABLE WINDOW Filed Sept. 26, 1930 2 Sheets-Sheet 2 .7 m w w 4 /Z L 1g /5 3/5510 Z7 fwem'vzz @JW Patented Mar. 13, 1934 UNITED STATES PATENT OFFICE DETACHABLE WINDOW Application September 26, 1930, Serial No. 484,548

26 Claims.

My invention relates to windows, and particularly to the mounting of the sashes in the frame of the window, the mounting being such as to enable one to quickly remove the sashes to thereby repair or clean the same, or for any other desired purpose.

One object of this invention is to provide a window which has a plurality of sashes which are quickly demountable, and as quickly reif) placed. No skill is necessary in removing the sashes or in replacing the same.

Another object of this invention resides in the novel means of holding the sashes in adjusted positions in their guides, the use of counter-weights being unnecessary for this purpose, thereby doing away with a great amount of the expense of construction and installation.

A very important object of this invention is the provision of guided members which are sep arate from the sashes, but on which the sashes are detachably supported when the sashes are in operative position. These separate members have friction means for retaining said members in adjusted positions in their respective guides irrespective of whether or not the sashes are supported thereby.

More specifically my invention has for its object the provision of novel friction retaining means for the guide strips which support the sashes, the friction retaining means serving a double function via, the counter-balancing of the sashes and as retaining means for holding the guide strips in adjusted positions in their guides even when the sashes are removed.

Other objects of this invention will appear hereinafter as the description thereof proceeds, the novel features, combinations and arrangement of parts being clearly set forth in the appended claims.

In the drawings- Fig. 1 represents an elevational view of the left hand inner side of a window embodying my invention;

Fig. 2 is a cross-section taken substantially along the line 2--2 of Fig. 1;

Fig. 3 is a plan view of the sashes arranged -in the frame, the frame and portions of the sashes being sectioned for the sake of clearness;

Fig. 4 is an elevational view partly in section of a releasable catch for holding the lower sash in place with respect to its guide strips;

Fig. 5 is a section taken substantially on the line5-5 of Fig. 4;

Fig. 6 is a section taken substantially 55 the line 66 of Fig. 2; l

along Figs. 7 and 8 are perspective views of the right hand guide strips for the lower and upper sashes respectively the other guide strips being shown in Figs. 1 and 2; and

Figs. 9 and'lO are perspective views of the vertical right-hand edges of the lower and upper surfaces which fit into the guide strips shown in Figs. '7 and 8 respectively.

The frame of the window comprises a sill 1, jams 2 and head 3. The frame is also provided with the usual stool 4, apron 5, parting beads 6, the inner stop 7 and the blind stop 8. This construction is common to most windows and no further elaboration thereon need be made. It will be noticed that the jams are not constructed so as to support the usual pulleys over which the cords for the sash Weights are trained as my invention does not contemplate the use of sash weights.

The upper sash designated generally as 9 is adapted to be supported by two guide strips 10, one guide strip being used on each side of the sash and being arranged between the parting bead and the blind stop on its respective side of the frame. Each of these guide strips as best illustrated in Figs. 2, 3, 8 and 10 is provided with a longitudinal recess 11, the opposite ends of which form the abutting surfaces 12 and 13 respectively, the latter as seen in Figs. 2 and 8 being at an angle to the horizontal, or at an acute angle to one side 14 of the recess. A friction bar 15 having the inturned ends 16 fitted within the recesses 17 (see particularly Figs. 2 and 8) is normally spring-pressed outwardly away from the guide strip 10 by means of a plurality of spring pressed plungers 18. These plungers which are best illustrated in Fig. 6 are slidable within a cup-shaped member 19 arranged in a recess 20 and have a stem portion 22 and a headed portion 21 on the stem portion, the stem portion sliding in a suitable opening in the bottom of the cup-shaped member 19. A spring 23 is interposed between the plunger 18 and the bottom of the cup-shaped member 19 so as to move the plunger outwardly, the outward movement being limited by the head 21. The friction bar 15 abuts against the parting head 6 and the strip is guided by means of the parting bead andthe blind stop 8 (see particularly Figs. 2 and 3).

The upper sash 9 has vertical longitudinal grooves 24 in the opposite sides thereof which are arranged towards the outer side of the window (see Figs. 10 and 3). This forms a rib 25 along each side of the sash. The upper ends of the ribs form surfaces 26 which are sloping at angles corresponding to those for the surfaces 13 on the guide strips 10. The bottom ends of the ribs 25 form abutment surfaces 27.

The guide strips are arranged in the opposed grooves between the beads and blind stops on opposite sides of, the window frame with the friction bar engaging the beads 6. Due to the fact that the bars 15 are spring-pressed outwardly, the strips 10 will be held against vertical movement either upwardly or downwardly due to the frictional engagement between the bars and the beads, and between the body of the strip 10 and the stops 8, it being understood that the springs 23 are of sufficient strength to create enough friction for this purpose and the combined strength of the springs being greater than is actually necessary to hold the strips 19 in vertical adjustment within their guides when the sash is carried thereby.

With the guide strips 10 arranged at the same height in their respective grooves and preferably at the bottom of the grooves, I am enabled to arrange the sash 9 between the strips 10 by first placing the upper ends of the ribs within the grooves 11 with the sloping surfaces 13 and 26 in engagement with each other and then moving the bottom part of the sash inwardly to position substantially the entire rib within the groove 11, the surfaces 12 and 13 on the strips 10 and sash 9 abutting against each other in this position of the sash. The appearance of the sash then is substantially that of an ordinary sash in view of the fact that the parting between the sides of the sash and the guide strips 19 is substantially in the same plane as the edge of the bead. All that is necessary in order to hold the sash in this relation with respect to the guide strips is some means which will keep the bottom of the sash from moving inwardly or towards the dotted line position illustrated in Fig. 2. I'accomplish this result by the very simple means of having the meeting rail 28 abut against the frame of and guide strips for the lower sash in a manner which will appear presently. This meeting rail will always act in this manner in the normal positions of the sashes.

The construction of the guide strips 29 for the lower sash is substantially the same as for the upper sash with certain modifications'which will appear as the description of these strips proceeds. As best illustrated in Figs. 1, 2, 3 and 7,Kthe body portion of the guide strip is provided with a longitudinally vertically arranged groove 30 and abutting surfaces are formed at the ends of this groove by means of the metal plates 31 and 32 arranged at the upper and lower ends of the strip respectively. The plate 31 has a notch 33 arranged therein and the plate 32 has an upwardly projecting portion .34 on the side thereof towards the innerside of the windows. A friction bar 35 similarv to the friction bar 15 is spring-pressed outwardly away from the guide strip by means of the spring pressed plungers 18 identical with those used with the upper guide strips 10. The lower sash is provided with ribs 36 along opposite sides thereof similar to the ribs 25 on the supper sash, and this rib is provided with the projections 37 at the lower end thereof, this projection being adapted to be arranged between the projection34 and the body portion of the strip 29 when the sash is in place.

The upper edge of the rib, together with a portion of the body of the sash is provided with a spring-pressed latch 38 which is adapted to engage the recess 33 in the plate 31 to retain the sash in place between the guide strips. The latch 38 is carried by a metal casing 39 secured by the screws 40 to the sash. This frame has a plate portion 41 covering a recess 42 in the upper edge of the sash and a lug 43 extends downwardly from the plate 41 and an opening therein slidably receives the extension 44 of the latch 38, the latch being provided with abutment shoulders 45 best illustrated in Fig. 5 between which and the lug 43 I arrange a spring 46 which normally urges the latch 38 into the notch 33 in the plate 31, the movement of this latter direction being limited by the engagement of the vertical portion of the latch which engages the abutment 4'7 on the plate 39.

The guide strips are retained in their grooves by means of the friction bars 35 the same as the strips 10 are retained in their grooves by means of the friction bars 15. The lower sash is inserted between the guide strips 29 by first arranging the projections 37 behind the projections 34 and with the lower ends of the ribs 36 in the groove 30. When this has been done the upper side of the sash is moved inwardly towards the guide strips until the latches 38 engage the curved forward edges 48 of the plates 31. The continued movement of the sash in the same direction causes the latches to be retracted against the action of the springs 46, and as soon as the latches are opposite the notches 33, the same will enter the notches and prevent the movement of the upper side of the sash until manual means is employed to release the latches by withdrawing the same from the recesses 33 against the action of the springs 46.

The lower sash may be removed independently of the vertical position thereof in the guides formed by the beads 6 and the stops '7 but the upper sash must be removed while in its lowermost position and the lower sash must be in its upper position at this time so as to render the upper sash accessible for removal. Since this arrangement of the sashes is not the customary arrangement employed, it is obvious that unless one intends to remove the sashes, he will not ordinarily move the same to a position where the meeting rail 28 will be uncovered by the lower sash. Therefore, positive means is provided for preventing removal of both the upper and lower sashes except from the interior and at the will of a person desiring to remove the windows.

It will be noted that the projections 16 on the ends of the bars 15 and the corresponding projections 49 on the bars 35 prevent longitudinal movement of the bars relative to the guide strips 10 and 29 respectively. Since the forward ends of the plungers 18 are rounded, it is positively assured that even though the adjacent guide strip on the window frame is not truly perpendicular to the side of the frame, there nevertheless will be eflicient contact between the bar and the guiding surface of the strip, although If desired, stop blocks 50 may be positioned at the bottom of the outer grooves formed by the beads 6 and stop strips 8 so as to prevent excessive downward movement of the upper sash as it may be difiicult to remove the sash if, the same is moved downwardly a greater amount than is necessary.

Obviously those skilled in the art to which this invention pertains may make various changes and modifications in the arrangement of the various parts without departing from the scope of this invention as defined by the appended claims.

Having thus fully described my invention, what I desire to secure by Letters Patent of the United States is:

1. In a window, the combination with a sash, of guide strips removably secured to the opposite sides thereof, and friction means on said strips for retaining said strips in adjusted position within guides in a window frame, comprising spring-pressed bars mounted on said strips and adapted to engage said guides.

2. In a window, the combination with a frame, of a pair of guides in said frame at opposite sides thereof, guide strips slidable in said guides, sashes detachably carried by said strips, and friction bars mounted on said strips and extending substantially the entire length thereof, adapted to engage one side of the guide for their respective strips.

3. A window comprising a frame having guides thereon, a plurality of members guided thereby, means for detachably supporting a sash on some of said members, means for supporting a second sash on other of said members, means for locking said first sash in place with respect to its supporting members, co-operating means on both of said sashes adapted to prevent removal of said second sash from its supporting members while said sashes are in any of their normal operative positions, said co-operating means automatically being rendered inoperative by movement of said sashes to abnormal positions with respect to each other, and friction retaining means for retaining said members in any desired position along their guides.

4. A window comprising a frame having guides thereon, a plurality of members guided thereby, means for detachably supporting a sash on some of said members, means for supporting a second sash on other of said members, means for locking said first sash in place with respect to its supporting members, co-operatingmeans on both of said sashes adapted to prevent removal of said second sash from its supporting members while said sashes are in any of their normal operative positions, said co-operating means automatically being rendered inoperative by movement of said sashes to abnormal positions with respect to each other, and friction retaining means for retaining said members in any desired position along their guides comprising friction plates on said members yieldingly urged toward said guides.

5. A window comprising a frame having guides thereon, a plurality of members guided thereby, means for detachably supporting a sash on some of said members, means for supporting a second sash on other of said members, means for locking-said first sash in place with respect to its supporting members, co-operating means on both of said sashes adapted to prevent removal of said second sash from its supporting members while said sashes are in any of their normal intended positions, said oo-operating means automatically being rendered inoperative by movement of said sashes to abnormal positions with respect to each other, and. friction retaining means for retaining said members in any desired position along their guides, comprising elongated spring-pressed members. i

6. A window comprising a frame having guide thereon, a plurality of members guided thereby, means for detachably supporting a sash on some of said members, means for supporting a second sash on other of said members, means for locking said first sash in place with respect to its supporting members, co-operating means on both of said sashes adapted to prevent removal of said second sash from its supporting members while said sashes are in any of their normal intended positions, said co-operating means automatically being rendered inoperative by movement of said sashes to abnormal positions with respect to each other, and friction retaining means for retaining said members in any desired position. along their guides, comprising elongated spring-pressed members having retaining means thereon for retaining said elongated members on said first mentioned members.

7. Sashes for windows comprising a sash frame, guide strips detachably secured thereto and adapted to support said sash when employed with a suitable window frame, elongated members arranged substantially parallel to said guide strips, and springs carried by said strips for engaging said elongated members and for urging them outwardly away from said strips.

8. A window comprising a frame having guides thereon, a plurality of members guided thereby, means for detachably supporting a sash on some of said members, means for supporting a second sash on other of said members, means for locking said first sash in place with respect to its supporting members, and cooperating means on both of said sashes adapted to prevent removal of said second sash from its supporting members while said sashes are in any of their normal operative positions, said cooperating means automatically being rendered inoperative by movement of said sashes to abnormal positions with respect to each other.

9. In a window, the combination with a frame, guides in opposite sides of said frame adapted to slidably guide an upper and a lower sash respectively for movement in parallel planes which lie closely adjacent each other, a pair' of members guided in opposed guides for supporting the lower sash, additional members guided in other opposed guides for supportin the upper sash, said upper sash being releasably mounted on its supporting members but prevented from removal from its supporting members by the engagement of said lower sash with said upper sash while said lower sash and upper sash are in their normal operative positions, said upper sash being releasable from its supporting members when said lower sash is moved upwardly and said upper sash is moved downwardly until said upper sash is substantially uncover d by said lower sash.

10. In a window, the combination with a frame, a pair of opposed guides in said frame for, guiding the lower sash of said window, a lower sash guided by said guides, additional opposed guides parallel to said first guides, supporting members guided in said additional guides, an upper sash releasably carried by said members but being positively held against release fromv said members while said lower sash and upper sash are in their normal operative positions, said upper sash being releasable immediately upon the movement of said upper sash downwardly and said lower sash upwardly to positions such that said lower sash substantially uncovers said upper sash.

11. In av window, the combination with a frame, opposed guides in said frame for guiding a lower sash, additional opposed guides for guiding an'upper sash, a lower sash guided in said first opposed guides, an upper sash releasably mounted in said second mentioned opposed guides and being releasable from said guides only when said upper sash is moved downward and said lower sash moved upward to positions such that the upper sash is uncovered below said lower sash.

12. In a window, the combination with a frame, opposed guides in said frame, a member arranged in each of said opposed guides, an upper sash releasably supported by said members'and having rigid means thereon cooperating with rigid means on said members for pre- I venting longitudinal shifting of said sash relative to said members, but permitting lateral movement of the lower end the eof when the lower end of said sash is uncovered on the side from which it is to be removed, additional guides for guiding the lower sash, a lower sash slidably mounted in said guides, said guides and lower sash being arranged on the side of said upper sash from which said upper sash is to be removed, said lower sash in its normal positions being opposed to the lower end of said upper sash to prevent movement of the lower end of said sash outwardly while said upper and lower sashes are in their normal positions in said guides, said upper sash being removable from said members when, said lower sash is moved upwardly and said upper sash moved downwardly to substantially uncover the upper sash below the lower sash by moving the lower end of the upper sash outwardly toward the plane of the lower sash.

13. In a window, the combination with a frame, opposed guides in said frame, a member arranged in each of said opposed guides, an upper sash ,releasably supported by said members and having rigid means thereon cooperating with rigid means on said members for preventing longitudinal shiiting of said sash relative to said members, but permitting lateral movement of the lower end thereof when the lower end of said sash is uncovered on the side from which it is to be removed, additional guides for guiding the lower sash, a lower sash slidably mounted in said guides, said guides and lower sash being arranged on the side of said upper sash from which said upper sash is to be removed, said lower sash in its normal positions being opposed to the lower end of said upper sash to prevent movement of the lower end of said sash outwardly whil said upper and lower sashes are in their normal positions in said guides,

said upper sash being removable fromsaid members when said lower sash is moved upwardly and said upper sash moved downwardly to substantially uncover the upper sash below the lower sash by moving the lower end of the upper .sash outwardly toward the plane of the lower sash, said rigid means on said members and said'upper sash together with said lower sash being the .sole means for retaining said upper sash in operative relation with said members while said sashes are in their normal positions. I

14. In a windov, the combination with a frame, opposed guides in said frame, a member arranged in each of said opposed guides, an upper sash releasably supported by said members and having rigid means thereon cooperating with rigid means on said members for preventing longitudinal shifting of said sash relative to said members, but permitting lateral movement of the lower end thereof when the lower end of said sash is uncovered on the side from which it is to be removed, additional guides for guiding the lower sash, a lower sash slidably and releasably mounted in said guides, said guides and lower sash being arranged on the side of said upper sash from which said upper sash is to be removed, said lower sash in its normal positions being opposed to the lower end of said upper sash to prevent movement of the lower end of said sash outwardly while said upper and lower sashes are in their normal positions in said guides, said upper sash being removable from said members when said lower sash is moved upwardly and said upper sash moved downwardly to substantially uncover the upper sash below the lower sash by moving the lower end of the upper sash outwardly toward the plane of the lower sash.

15.111; 2, window, the combination with a frame guide members slidable along said frame, a sash arranged between said guide members, rigid means on said sash adjacent one end thereof, rigid means on said guide members cooperating with said rigid means on said sash for reventing relative movement of said guide members and sash in one direction, and releasable interlocking means between the other end of said sash and said guide members, said rigid means on said sash and guide members being disengageable only when said releasable inter-' locking means is released and said second mentioned end of said sash 'moved relative to said guide members.

16. A sash comprising guide strips adapted to be independently guided by suitable guides on a window frame, a sash frame arranged between said guide strips, one end of each of said guide stri s having a recess therein with the opening thereof extending towards the other end of said guide strips, projections on said sash frame engaging in said recesses and insertable therein by a movement substantially in the direction of the longitudinal dimensions of said guide strips, means arranged at the second mentioned end of each guide strip for preventing movement of said projections out of said recesses while said frame is in operative position between said guides, and releasable means for holding said frame in position between said guides, said releasable means when released permitting said frame to be moved laterally out of engagement with said guides to permit said projections to be withdrawn from said recesses.

17. In a window, the combination of two sashes slidable relatively to each other in substantially parallel planes, one of said sashes being releasably supported by two guide strips, and means for preventing release of said sash from said guide strips while said sashes are in one position of adjustment relative to each other but which latter means is automatically rendered inoperative when said sashes are in another position of adjustment relative to each other.

18. In a demountable sash, the combination with a pair of guide strips, each guide strip having a rigid projection extending toward the other guide strip adjacent each end thereof, a sash frame, rigid means at one end of said frame interlocking with opposed projections on said guide strips, said sash frame being prevented from movement longitudinally of said strips by said projections, and means on said sash frame at the other end thereof releasably interlocking with adjacent ones of said projections to prevent relative lateral movement between said frame and guide strips.

19. In a window, the combination with two pairs of guides, each pair parallel to the other and with each guide of a pair parallel to the other guide of that pair, separate guide members in each of said guides, two of said guide members of opposed pairs forming a support for a lower sash, the other two of said guide members forming a support for an upper sash, an upper sash and a lower sash supported respectively by said guides, members on each guide for preventing relative longitudinal movement between each guide and its respective sash, means for preventing lateral movement of the upper end of the upper sash while said lower end of said upper sash is in operative position between its respective guides, said lower end of said upper sash being prevented from lateral sash from operative position between its guides.

;tively by said guides, members on each guide for preventing relative longitudinal movement between each guide and its respective sash, means for preventing lateral movement of the upper end of the upper sash while said lower end of said upper sash is in operative position between its respective guides, said lower end of said upper sash being prevented from lateral movement while adjacent said lower sash but movable when uncovered by said lower sash to permit said lower end of said upper sash to ;ually operable, quickly releasable interlocking means for holding said sashes on their respec tive members against shifting movement with respect thereto and for releasably holding said sashes and members in fixed relation with rem spect to each other, and friction means for retaining said members in adjusted position to which the same may be manually moved along their guides while permitting instant movement of said members along said guide when addi- 'tional force is applied to move said sashes or members, said members being so retained as set forth irrespective of whether or not the sashes are supported thereon or whether or not there is any interconnecting means between said members, each friction means being operative in said guides independently of each other when not interconnected, and frictionally held in place in their respective guides by the friction means thereon independently of any connecting means between said members, said friction means being such as to permit manual withdrawal of said members from said guides without changing the respective positions of the constituent portions of said guides, a sash supported on said members, and manually operable, quickly releasable connections between said members and sash for releasably holding said sash firmly in position on said members and for causing said members to move in unison with each other along their respective guides due to their connection with said sash.

23. In a window, the combination with a frame, of a pair of guides in said frame, members each having friction means thereon slidable in said guides independently of each other when not interconnected, and frictionally held in place in their respective guides by the friction means thereon independently of any connecting means between said members, said friction means being such as to permit manual withdrawal of said members from said guides without changing the respective positions of the constituent portions of said guides, a sash supported on said members, and manual pressure operated releasable interlocking means between said members and sash for releasably holding said sash firmly in position on said members and for causing said members to move in unison with each other along their respective guides due to their connection with said sash.

24. In a window, the combination with a frame, of a pair of guides in said frame, members each having friction means thereon slidable in said guides independently of each other when not interconnected, and frictionally held in place in their respective guides by the friction means thereon independently of any connecting means between said members, said friction means being such as to permit manual withdrawal of said members from said guides without changing the respective positions of the constituent portions of said guides, a sash supported on said members, and manually operable, quickly releasable connections between said members and sash for releasably holding said sash firmly in position on said members and for causing said members to move in unison with each other along their respective guides due to their connection with said sash comprising cooperating rigid abutments on said sash and members respectively for preventing outward movement of a portion of said sash away from said members, and releasable latches for holding other portions of said sash against movement away from said members.

25. In a window, the combination with a frame, a pair of opposed guides in said frame,

members each having friction means thereon slidably supported in different ones of said guides and frictionally held in place therein by friction means arranged between said members and guides whereby said members are slidably supported within said guides and held against movement along said guides except when manual pressure is applied thereto in addition to the ordinary forces acting on said members, a sash having rigid interlocking means at one end thereof cooperating with rigid interlocking means at the corresponding ends of said members to hold said sash against outward movement away from said members in a direction substantially perpendicular to the plane of said sash, and manually releasable interlocking means at the opposite end of said sash cooperating with means on the corresponding ends of said members for preventing movement of that end of said sash away from said members.

26. In 'a window, the combination with a frame, a pair of opposed guides in said frame, members each having a friction means thereon slidably supported in different ones of said guides and frictionally held in place therein by friction means arranged between said members and guides whereby said members are slidably supported within said guides and held against movement along said guides except when manual pressure is applied thereto in addition to the ordinary forces acting on said members, a sash having rigid interlocking means at one end thereof cooperating with rigid interlocking means at the corresponding ends of said members to hold said sash against outward movement away from said members in a direction substantially perpendicular to the plane of said sash, and manually releasable interlocking means at the opposite end of said sash cooperating with meanson the corresponding ends of said members for preventing movement of that end of said sash away from said members, said manually releasable interlocking means comprising spring-pressed latches, one on each side of said sash at said end of said sash adapted to cooperate with their adjacent members, whereby upon movement of said latches against the action of said springs, the releasable connection between said sash and said members becomes inoperative and the sash may be bodily removed from said members.

FREDERIK PAULSEN. 

